Zithini iinkcazo ze-fiber, cellulose, kunye ne-cellulose ether kwaye yintoni umahluko?

Umgubo wePutty ubunjwe kakhulu zizinto ezenza ifilimu (izinto zokubopha), izizalisi, iiarhente zokugcina amanzi, izithambisi, ii-defoamers, njl. Izinto eziqhelekileyo zekhemikhali yendalo kwi-putty powder ziquka: i-cellulose, i-starch e-pregelatinized, i-starch ether, i-polyvinyl alcohol, umgubo we-latex osasazekayo, njl. Ngezantsi, iPolycat iza kuhlalutya ukusebenza kunye nokusetyenziswa kwezixhobo ezahlukeneyo zekhemikhali nganye nganye.

Ifayibha:

I-Fiber (US: I-Fiber; IsiNgesi: I-Fiber) ibhekisa kwinto eyenziwe yi-filaments eqhubekayo okanye engaqhubekiyo. Ezifana ne-plant fiber, iinwele zezilwanyana, i-silk fiber, i-synthetic fiber, njl.njl.

Iseli:

I-Cellulose yi-polysaccharide enkulu eyenziwe yi-glucose kwaye yeyona nto iphambili kwisakhiwo seendonga zeeseli zezityalo. Kubushushu begumbi, i-cellulose ayinyibiliki emanzini okanye kwi-organic solvents eqhelekileyo. Umxholo we-cellulose wekotoni usondele kwi-100%, nto leyo eyenza ukuba ibe ngumthombo wendalo ococekileyo we-cellulose. Ngokubanzi, i-cellulose ibalwa yi-40-50%, kwaye kukho i-10-30% ye-hemicellulose kunye ne-20-30% ye-lignin.

Umahluko phakathi kwe-cellulose (ekunene) kunye ne-starch (ekhohlo):

Ngokubanzi, zombini istatshi kunye neselulosi zii-polysaccharides ze-macromolecular, kwaye ifomula yemolekyuli ingachazwa ngolu hlobo (C6H10O5) n. Ubunzima bemolekyuli yeselulosi bukhulu kunobo bestatshi, kwaye iselulosi inokubola ukuze kuveliswe istatshi. I-Cellulose yi-D-glucose kunye ne-β-1,4 glycoside Ii-polysaccharides ze-Macromolecular ezenziwe ziibhondi, ngelixa istatshi senziwe ziibhondi ze-α-1,4 glycosidic. I-Cellulose ngokubanzi ayinamagatsha, kodwa istatshi sinamagatsha ngamabhondi e-1,6 glycosidic. I-Cellulose ayinyibiliki kakuhle emanzini, ngelixa istatshi sinyibilika emanzini ashushu. I-Cellulose ayivani ne-amylase kwaye ayijiki luhlaza okwesibhakabhaka xa iboniswa yi-iodine.

I-Ether yeSellulose:

Igama lesiNgesi elithii-cellulose etheryi-cellulose ether, eyi-polymer compound enesakhiwo se-ether esenziwe nge-cellulose. Yimveliso ye-chemical reaction ye-cellulose (isityalo) ene-etherification agent. Ngokwendlela yokwahlulahlula isakhiwo seekhemikhali se-substituent emva kwe-etherification, inokwahlulwa ibe yi-anionic, cationic kunye ne-nonionic ethers. Ngokuxhomekeke kwi-etherification agent esetyenzisiweyo, kukho i-methyl cellulose, i-hydroxyethyl methyl cellulose, i-carboxymethyl cellulose, i-ethyl cellulose, i-benzyl cellulose, i-hydroxyethyl cellulose, i-hydroxypropyl methyl cellulose, i-cyanoethyl cellulose, i-benzyl cyanoethyl cellulose, i-carboxymethyl hydroxyethyl cellulose kunye ne-phenyl cellulose, njl. Kwishishini lokwakha, i-cellulose ether ikwabizwa ngokuba yi-cellulose, eligama lingaqhelekanga, kwaye ibizwa ngokuba yi-cellulose (okanye i-ether) ngokuchanekileyo.

Indlela Yokwenza Ukuqina Kwe-Cellulose Ether Thickener:

Ii-ether thickeners ze-cellulose zi-thickeners ezingezizo ii-ionic ezithi zijiye kakhulu ngokufuthwa kunye nokuxinana phakathi kwee-molecules.

Ikhonkco le-polymer le-cellulose ether kulula ukulibumba i-hydrogen bond namanzi emanzini, kwaye i-hydrogen bond yenza ukuba libe ne-hydration ephezulu kunye ne-inter-molecular entanglement.

Xai-cellulose etherI-thickener yongezwa kwipeyinti ye-latex, ifunxa amanzi amaninzi, nto leyo ebangela ukuba umthamo wayo wande kakhulu, nto leyo enciphisa indawo yasimahla yee-pigments, izizalisi kunye nee-latex particles;

Kwangaxeshanye, iitsheyini zemolekyuli ze-cellulose ether zidibene ukuze zenze isakhiwo senethiwekhi esinemilinganiselo emithathu, kwaye ii-pigments, izizalisi kunye nee-latex particles zijikelezwe embindini we-mesh kwaye azikwazi ukuhamba ngokukhululekileyo.

Phantsi kwezi ziphumo zimbini, i-viscosity yenkqubo iyaphucuka! Sifezekise isiphumo sokutyeba esasisifuna!